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Also consider this : Whey protein concentrates are processed at low temperatures and low acid conditions. They can contain as much as 70% to 80% percent protein, with small amounts of lactose and minimal fats. In addition, low tempature and low acid filtration ensures that about 90% - 96% of this protein is undenatured. It also retains most of the active peptides.
iIon exchange whey protein isolates are processed to contain more than 90% protein content with minimal lactose and no fat. This offers an advantage over whey concentrates in terms of pure protein content. However some of the isolation procedures (ion-exchange procedures) lead to a denaturation or a loss of the important peptides. Therefore, ion exchange whey protein isolates may be higher in protein percentage but may not offer the same health and muscle building benefits as the lower protein whey concentrates.
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